Shale Barren Buckwheat
Eriogonum allenii

| Description: Silvery leaves and bright yellow flowers on the only buckwheat easy to grow in the Eastern US. Good for a green roof. |
| Propagation: Seeds or divisions |
| Initial bloom (month and week): July W3 |
| Garden name: Sunny Garden |
| Color of flower: Yellow |
| Height: 12″ |
| Spread: 16″ |
| Family: Polygonaceae |
| Soil type: Neutral gravel |
| Soil moisture: Dry |
| Light: Full sun |
| Zone: 5-8 |